- Mount Olympus (In Greece) 600 km (373 miles) wide and 21 km (13 miles) high.
- Some volcanoes can be under ice like in Greenland.
- Some large eruptions can reflect radiation from the sun.
- Some volcanoes can take 1000 years to form its shape!
- The anger around the volcano is about 20 miles radios!
- An erupting volcano can create tsunamis, flash , earthquakes and rockfalls.